X-Melt: precision technology for micromoulding and thin wall parts

Abstract

Engel X-Melt is an unconventional process for the production of small and/or thin section parts. Conventionally, thin wall moulding involves high acceleration and deceleration of the screw as it performs its forward movement. X-Melt, on the other hand, uses the energy stored in the compressed melt in front of the screw. Injection is affected simply by opening the needle valve nozzle, allowing the melt to expand and fill the mould cavity. Through the use of this process, a higher melt front velocity will permit filling of thinner wall sections than would otherwise be possible, and in micromoulding, variations in the process caused by the closing behaviour of the mechanical check ring are eliminated.

Keywords:

• X-MELT
• MICROMOULDING
• EXPANSION INJECTION MOULDING
• THIN WALLED MOULDING